code: def _scalar(x: torch.Tensor):
      """Convert a scalar tensor into a Python value."""
      assert x.numel() == 1
      return x[0]
  
imports: from __future__ import annotations
  import dataclasses
  import re
  import typing
  from typing import Any, Dict, Iterable, Optional, Sequence, Tuple, Union
  import torch
  from torch import _C
  from torch._C import _onnx
  from torch.onnx._globals import GLOBALS
  from torch.onnx._internal import _beartype, registration
label_desc: Use image node_id 6 for calling a global function with example usage: _scalar(x) and returns: x